<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
  <h1>登录页面</h1>
  <input type="text" placeholder="用户名" v-model="user.username">
  <input type="password" placeholder="密码" v-model="user.password">
  <input type="button" value="提交" @click="login()">

</div>
<!--引入axios和vue框架文件-->
<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
<script src="https://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script>
<script>
    let v = new Vue({
        el:"body>div",
        data:{
          user:{
            username:"",
            password:""
          }
        },
        methods:{
          login(){
            // axios.get("/login?username="+v.user.username+"&password="+v.user.password).then(function (response) {
            //   alert(response.data)
            // })
              axios.post("/login",v.user).then(function (response){
                  if (response.data == 1){
                      alert("登陆成功")
                      location.href="/";
                  }else if (response.data == 2){
                      alert("密码错误")
                      location.href="/login.html";
                  }else{
                      alert("用户名已存在")
                      location.href="/login.html";
                  }
              })
          }
        }
    })
</script>
</body>
</html>